param(
    [object]$Config,
    [string]$LogFile
)

$ErrorActionPreference = "Continue"

function Write-Log {
    param([string]$Message, [string]$Level = "INFO")
    $line = "[$(Get-Date -Format 'HH:mm:ss')] [$Level] $Message"
    Add-Content -Path $LogFile -Value $line -Encoding UTF8
}

# -----------------------------------------------------------------------
# Check winget availability
# -----------------------------------------------------------------------
Write-Log "Checking winget availability" -Level INFO

$winget = Get-Command winget -ErrorAction SilentlyContinue
if (-not $winget) {
    # Try to find winget in known locations
    $wingetPaths = @(
        "$env:LOCALAPPDATA\Microsoft\WindowsApps\winget.exe"
        "$env:ProgramFiles\WindowsApps\Microsoft.DesktopAppInstaller*\winget.exe"
    )
    foreach ($p in $wingetPaths) {
        $found = Get-Item $p -ErrorAction SilentlyContinue | Select-Object -First 1
        if ($found) { $winget = $found.FullName; break }
    }
}

if (-not $winget) {
    Write-Log "winget not found - software installation skipped" -Level ERROR
    exit 1
}

Write-Log "winget found: $($winget.Source -or $winget)" -Level OK

# Accept agreements upfront
& winget source update --accept-source-agreements 2>&1 | Out-Null

# -----------------------------------------------------------------------
# Install packages from config
# -----------------------------------------------------------------------
if (-not $Config -or -not $Config.software -or -not $Config.software.install) {
    Write-Log "No software list in config - skipping installs" -Level WARN
} else {
    foreach ($pkg in $Config.software.install) {
        Write-Log "Installing $($pkg.name) ($($pkg.wingetId))" -Level INFO
        $result = & winget install --id $pkg.wingetId `
            --silent `
            --accept-package-agreements `
            --accept-source-agreements `
            --disable-interactivity `
            2>&1

        $exitCode = $LASTEXITCODE
        if ($exitCode -eq 0) {
            Write-Log "  Installed OK: $($pkg.name)" -Level OK
        } elseif ($exitCode -eq -1978335189) {
            # 0x8A150011 = already installed
            Write-Log "  Already installed: $($pkg.name)" -Level OK
        } else {
            Write-Log "  Failed: $($pkg.name) (exit $exitCode)" -Level ERROR
            Write-Log "  Output: $($result -join ' ')" -Level ERROR
        }
    }
}

# -----------------------------------------------------------------------
# Set Adobe Reader as default PDF app
# -----------------------------------------------------------------------
$forcePdf = $true
if ($Config -and $Config.pdfDefault) {
    $forcePdf = [bool]$Config.pdfDefault.forceAdobeReader
}

if ($forcePdf) {
    Write-Log "Setting Adobe Reader as default PDF app" -Level INFO

    # Find Adobe PDF viewer executable (Acrobat DC or Reader DC)
    $acroPaths = @(
        "$env:ProgramFiles\Adobe\Acrobat DC\Acrobat\Acrobat.exe"
        "${env:ProgramFiles(x86)}\Adobe\Acrobat DC\Acrobat\Acrobat.exe"
        "${env:ProgramFiles(x86)}\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe"
        "$env:ProgramFiles\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe"
        "${env:ProgramFiles(x86)}\Adobe\Reader\Reader\AcroRd32.exe"
    )
    $acroExe = $acroPaths | Where-Object { Test-Path $_ } | Select-Object -First 1

    if (-not $acroExe) {
        Write-Log "  Adobe PDF viewer not found - PDF default not set" -Level WARN
    } else {
        Write-Log "  Found: $acroExe" -Level INFO

        # Set file type association via HKCR (system-wide, requires admin)
        $progId = "AcroExch.Document.DC"
        $openCmd = "`"$acroExe`" `"%1`""

        # HKCR\.pdf -> progId
        if (-not (Test-Path "HKCR:\.pdf")) {
            New-Item -Path "HKCR:\.pdf" -Force | Out-Null
        }
        Set-ItemProperty -Path "HKCR:\.pdf" -Name "(Default)" -Value $progId

        # HKCR\AcroExch.Document.DC\shell\open\command
        $cmdPath = "HKCR:\$progId\shell\open\command"
        if (-not (Test-Path $cmdPath)) {
            New-Item -Path $cmdPath -Force | Out-Null
        }
        Set-ItemProperty -Path $cmdPath -Name "(Default)" -Value $openCmd

        # Note: HKCU UserChoice requires a Windows-computed Hash value to be valid.
        # Direct ProgId write without Hash is silently reset by Windows on next access.
        # HKCR write above provides the system-wide default; per-user default is
        # handled by the PDF-DefaultApp scheduled task via HKCR on every logon.

        Write-Log "  PDF default set to AcroRd32 (HKCR)" -Level OK
    }
}

Write-Log "Step 2 complete" -Level OK